Classification of borosilicate sight glass

Classification of borosilicate sight glass
1, low alkali borosilicate sight glass: refers to the composition of SiO2-B2O3-R2O, R2O, SiO2 with low high sight glass, small linear expansion coefficient, dispersion, good chemical stability, high thermal stability, good insulation, as the sight glass before (such as Pyrex), heat-resistant cookware, ampoule sight glass, neutral sight glass, electric vacuum sight glass, optical LCD, sight glass substrate, solar panels and solar collector.
2, alkaline earth borosilicate sight glass: refers to the composition of SiO2-B2O3-RO, such as SiO2-B2O3-PbO components, preparation of optical sight glass, low temperature glaze using system; SiO2-B2O3-PbO/ZnO component for crystalline powder solder, as a cathode ray tube (CRT) for sealing; SiO2-B2O3-ZnO components for electronic devices, rectifier, passive aspect.
3, lanthanum borosilicate sight glass: SiO2-B2O3-La2O3-RmOn composition. For example, SiO2-B2O3-La2O3-CaO-ZnO-ZrO2 component has high refractive index and low dispersion, good chemical temperature and low penetration. It can be used as optical sight glass.
4, rare earth doped borosilicate sight glass with SiO2-B2O3-RmOn based components, Pr, Nd doped laser sight glass, doping Au, Ag, Cu, CdS, nonlinear optical sight glass doped ZnS:Mn nanocrystalline luminescent sight glass.

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